Tackincmffiachine



C. F. WARNKE.

TACKING MACHINE. APPucATxoN FILED APR. 27. 191e.

Patented July 22, 1919.

CLARENCE F. WARNKE, OF TOLEDO, OHIO.

FFIQE.

' 'PACKING-MACHINE.

Specication of Letters Patent.

Patented July 22, 1919.

Application led Apri127, 1918. Serial No. 231,081.`

To all whom, t may concern.'

Be it known that I, CLARENCE F. VVARNKE, a citizen of the United States, and a resident of Toledo, in the .county of Lucas and State Jof Qhio, have invented a certain new and useful Tacking-Machine; and I do hereby declare the following to be a full, clear, and exact description of the invention', such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

My invention relates to` machines for driving `tacks and small nails. It has for its object a simple and etli'cient light weight machine that can be easily manipulated and controlled by the hand of the user. The object ofthe invention is to provide a tack .or ,small nail driving machine which may be readily shifted from one position to another to drive tacks or small nails wherever may be desired. It is particularly useful in connection with upholstering work of all kinds, making of covers and in fact, may be used wherever sheet material such as fabric or metal or other material is to be secured by means of tacks or small nails.

The invention may be contained in many forms of construction. lI have selected one form of construction for purposes of illusillustrates the end of the chute for guiding the tacks or nails. Fig. 8 is a view of a lever located in the handle 1 so-as to control the passage-ways 4'and 5. vThe valve member 6 1s provided with passage-ways 7 and 8 and also short channels 9 Vand 10. The Valve member 6 is held in its normal position byv means of a spring 11 which is secured to the vhandle 1 and also lto the valve mem` l ber 6 to allow movement of the valve member 6 but so as to prevent rotation of the valve member 6 within the handle 1. The spring 11 operates to cause the valve member 6 to return to its normal position when it has been pushed therefrom by the use of the linger. It is provided with a pin 1\2 which limits the movement of the valve member y6 caused by the action of the spring 11.

When the valve member 6 is in its normal position, the passage-way 8 registers with the passage-way 5 and the passage-way 4 on one side of the valve member 6 is closed.

The passage-way 4 on the other side of the` valve member communicates with the eX- terior of the handle through the short channel 9 and the passage-way 7. When, however, the valve member 6 is pushed down, the passage-way 7 registers with the passage-way 4, and the passage-way 5 on one side of the valve rmember is closed While the passage-way 5 on the other side of the member Ithrough the channel 10 and the passageway 8, connects with the outside air.

The handle l is secured to a cylinder 13 by means of a suitable clamping bolt 14. It is so connected that the assage-way 4 communicates with the interlor of the cylinder through a hole 15. The cylinder is also provided with an opening 16 that connects with the passage-way 5 through a tube 17. A piston 18 is located in the cylinder13. It has a stem 19 that extends through a partition 2O that divides the cylinder into two parts. The opening 16 is so located as to permit the air under pressure to pass above the partition and below the piston 18, while the opening 15 is located in the upper end of the cylinder and so as to permit the air to pass above the iston 18. The stem 19 is threaded an is connected to a hammer head 21 which is located on the lower side of the partition 20. The hammer 21 is made in the form of a cone and is reciprocated in the lower end of the cylinder 13 by movements of the piston 18 caused by shiftingof the valve member 6 so as to permit the air under pressure to pass first to one side of the i securedi a vpiston 1-8 and escape from the other side and then pass to the other side and escape from the first side. Inasmuch as the valve member 6 by the action of the spring 11, takes the normal position such that the lower side of the piston is connected with the source of air pressure supply, the piston 18 and the hammer 21 are normally held in their uppermost positions.

The upper end of the cylinder 13 'is closed by an end late 22. To the end plate 22 is ox or container 23- which is closed by a cover 24. The bottom of the box is-provided with a slot 25 that extends toward the center of the box.A The tacks or small nails are placed in the box and by the shaking due to handling the instrument and the reciprocatory movements of the hammer, the nails or tacks are shaken so that their points drop through the slot 25. At the end of the slot 25, the interior of the box communicates or connects with the chute 26 which has a slot 27 that forms a continuation of the slot 25. By the shaking of the box in the use of the instrument, the tacks pass into the chute and fall down along the chute, the chute being of such size that the heads are held within the. chute While the points extend through the slot 27, and are uided to the lower end of the cylinder. 13 y the chute, 'where they are A stopped by a forked spring member 28 which is secured to the chute. The chute is twisted 180o so that the points will extend downward when the tacks or nails reach the bottom of the chute.

Around the lower edge of the cylinder 13 are located a plurality of conicallyarranged springs 29. The s rings 29 may be formed by cutting into o e or more strips,V

sheet metal that extends 90 or 180 or entirely around the lower end lof the cylinder in order thatthe proper amount of flexibility may be obtained. When the spring members 29 are placed together, they form a cone having a nipple '30 through which the nails or tacks may be forced when they are driven by the hammer 21. One of the segments of the sheet metal is provided with an opening 31 to permit the heads of the tacks or nails to pass and also a slot 32 which forms a continuation of the slot 27 located in the chute 26 and guides the points downward, the head being retarded by the friction caused by the heads sliding along the cone surface of the se' ment of the sheet material until the'tac or nail is supported in the `upper end of the nipple 30 with the point of the nail or tack located within the nipple 30 and extending toward the lower end of the nipple. l

33 will be forced open by the hammer 2l 7 and upon the return movement of the piston 18, the valve member 6 being released, the elastic cone will again reform to its normal shape.

111 order that the tacks may be dropped 7 one by one into the elastic cone 33 and guided to the nipple 30, the spring 28 operates to hold the tacks back by pressing on the top of the heads of the tacks. A dog 34 extends through the forked spring 28 8 and itslower end rides on the tops of the tacks. The dog 34 is operated by a lever l 35 that is ivotally supported on a pin 36 that exten s through a bracket 37. The

bracket 37 is secured to the lower endof 8 the cylinder, also a bracket or brace 38 may be secured by the pin 36 and to the bracket 37. The brace 38 operates to hold the lower end of the chute 26 in position. The lever 35 is operated by a plunger 39. The plun- 9 ger extends through an opening in the lower end of the cylinder and is pressed against the cone 21 by means of the spring 40 that is secured to the cylinder such as by the screw 41. plunger 39 by a pin and slot to allow swingmovements of the end 0f the lever 35 re ative to the longitudinal movements of the' plunger 39. When the hammer 21 descends, the plun- 1 ger`39 is forced outward which causes the dog 34 to engage the head of a tack or nail and ush `it past the restraining springs 28 and t ou h the opening 31 and slot 32, and into the e astic cone 33. On the return of the hammer 21, the tack or nail that is thus `pushed into the cone slips down the slot 32 and underneath the end of the hammer and thus it drops into the nipple 30. Also the plunger 39 by the operation of the spring l 40 moves inward and permits the dog 34 to engage the head of another nail or tack. Thus a succeeding tack is placed in position to be driven by a succeeding operation of the hammer 21. l

The instrument may be provided with legs or members 42 which may be adjustab y secured `to the cylinder 13 by clips 43 and screws i44. The members 42 operate to protect the elastic points of the cone 33.

:lhe instrument may be provided with Sultable backing material for Sealing the air passageways and the piston 18 may be provided with suitable packing rings or other devices to obtain the full effect of the air pressure controlled by the valve member 6.

I claim:

1. In a tacking tool, a cone shaped hammer, a plunger operated by the surface of i The lever 35 isconnected to the s the hammer, a dog operated by the plunger, a chute for feeding the tacks to position of engagement by the dogs, a cage formed of elastic members for receiving the tacks from the chute, and means for guiding the tacks to beneath the hammer within the ca e.

2. In a tacking tool, a cone shape hammer, a plunger operated by the surface of the hammer, a dog operated by the plunger,

.a chute for feeding thel tacks to position of engagement by the dogs, and a cage formed of elastic members for receiving the tacks from the chute, the cage having a slot for guiding the tacks to beneath the hammer.

v 3. In a tacking tool, a cone shaped hammer, a plunger operated by the surface of the hammer, a dog operated by the plunger a chute for feeding the tacks to position o engagement by the dogs, and a cage formed of-elastic members for receiving the tacks from the chute, the cage havin a nipple and a slot for guiding the tacks within the cage from the chute to the nipple. 4

4. In a tacking tool, a handle for manipulating the tool having a Y passageway, a cylinder connected to the end of the handle and with the passageway of the handle, a reservoir for tacks mounted on one end of the cylinder, a chute connected to the reservoir' and extending to the lower end of the cylinder, a pneumatic hammer located in the cylinder, a means forfdirectin tacks sequentially beneath the hammer an a valve member extending through the handle for controlling the passageways of the hammer.

5. In a tackingtool, a cylinder having a pneumatic hammer and passageways located above and below the piston of the hammer, a handle secured to the cylinder and extending substantially at right angles from the cylinder and having a branched passageway connected with the passageways of the cylinder, a spring pressed valve member extending through 4the handle and the branches of the passageway inthe handle and a tack reservoir secured to the to-p of the cylinder and a chute for conducting the tacks to be-` neath the hammer located in a transverse passageway extendingthrough the branches of the branched passageway, the valve member operating to open the connection from the branched passageway to either of passageways of the cylinder and open the connection from the cylinder to the atmosphere through the transverse passageway.

In testimony whereof I have hereunto signed my name to this specification.

CLARENCE F. WARNKE. 

